Ecom j2kn pro - 18 Frequently Asked Questions

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18. Frequently Asked Questions
Where do I find important in-
strument information?
How long is the life span of the
sensors?
Which sensors can I exchange?
The instrument shows the error
message “O
2
sensor 0 mV“
The instrument shows the error
message “T-Gas“ or “T-Air“
The instrument shows wrong or
inaccurately CO
2
values
Can I change the printout?
In the Control screen, all important instru-
ment information is shown (e.g. battery volt-
age, sensor values, serial number, next ser-
vice date, operation hours, etc.).
The life span depends on the operating hours
and the instrument equipment. The life span
of the toxic sensors (CO, NO, SO
2
, NO
2
) is
affected by high gas concentrations or insuf-
ficient purging. The life span for these sensors
is on average 3 years. The life span of the O
2
sensor is independent of the operating hours
and amounts to approximately 2 years.
The following sensors are exchangeable:
- O
2
sensor
- CO sensor (pre-calibrated available)
- NO sensor (pre-calibrated available)
- NO2 sensor (pre-calibrated available)
- SO
2
sensor (pre-calibrated available)
The O2 sensor must be changed.
Possible reasons could be:
- Cable is broken (at the plug)
- T-Air sensor error – check all connections
- T-Gas sensor error – check all connections
- Thermocouple is defective
Note: The error messages can be ignored by
pressing . Calculations that rely on these
temperatures will not display.
Possible reasons could be:
- O
2
is defective
(CO
2
values are calculated from O
2
value)
- Pump is not working correctly
- Air leakage in the gas path
- Peltier cooler is clogged
Yes, go to Adjustments -> Internal -> Printout